<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<link rel="stylesheet" href="../../resources/js-test-style.css"/>
<script src="../../resources/js-test-pre.js"></script>
<script src="../resources/webgl-test.js"></script>
<script src="../resources/webgl-test-utils.js"></script>
</head>
<body>
<canvas id="testbed" width="16" height="16"></canvas>
<canvas id="c" width="16" height="16"></canvas>
<div id="description"></div>
<div id="console"></div>
<script>
description('Tests texSubImage2D with bad arguments');

var wtu = WebGLTestUtils;
var c = document.getElementById("c");

var gl = wtu.create3DContext("testbed");
var tex = gl.createTexture();
gl.bindTexture(gl.TEXTURE_2D, tex);
gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, gl.RGBA, gl.UNSIGNED_BYTE, c);
glErrorShouldBe(gl, gl.NO_ERROR, "Setup should succeed");

gl.texSubImage2D(gl.TEXTURE_2D, 0, 0, 1, gl.RGBA, gl.UNSIGNED_BYTE, c);
glErrorShouldBe(gl, gl.INVALID_VALUE, "y + height > texture height");
gl.texSubImage2D(gl.TEXTURE_2D, 0, 1, 0, gl.RGBA, gl.UNSIGNED_BYTE, c);
glErrorShouldBe(gl, gl.INVALID_VALUE, "x + width > texture width");
gl.texSubImage2D(gl.TEXTURE_2D, 0, -1, 0, gl.RGBA, gl.UNSIGNED_BYTE, c);
glErrorShouldBe(gl, gl.INVALID_VALUE, "negative x");
gl.texSubImage2D(gl.TEXTURE_2D, 0, 0, -1, gl.RGBA, gl.UNSIGNED_BYTE, c);
glErrorShouldBe(gl, gl.INVALID_VALUE, "negative y");
gl.texSubImage2D(gl.TEXTURE_2D, -1, 0, 0, gl.RGBA, gl.UNSIGNED_BYTE, c);
glErrorShouldBe(gl, gl.INVALID_VALUE, "negative level");
gl.texSubImage2D(gl.FLOAT, 0, 0,0, gl.RGBA, gl.UNSIGNED_BYTE, c);
glErrorShouldBe(gl, gl.INVALID_ENUM, "bad target");
gl.texSubImage2D(gl.TEXTURE_2D, 0, 0, 0, gl.RGBA, gl.UNSIGNED_BYTE, c);
glErrorShouldBe(gl, gl.NO_ERROR, "good args");
gl.texSubImage2D(gl.TEXTURE_2D, 0, 0,0, gl.RGB, gl.UNSIGNED_BYTE, c);
glErrorShouldBe(gl, gl.INVALID_OPERATION, "format not same as original");
gl.texSubImage2D(gl.TEXTURE_2D, 0, 0,0, gl.RGBA, gl.UNSIGNED_SHORT_4_4_4_4, c);
glErrorShouldBe(gl, gl.INVALID_OPERATION, "type not same as original");
gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGB, gl.RGB, gl.UNSIGNED_BYTE, c);
glErrorShouldBe(gl, gl.NO_ERROR, "make texture RGB");
gl.texSubImage2D(gl.TEXTURE_2D, 0, 0,0, gl.RGB, gl.UNSIGNED_BYTE, c);
glErrorShouldBe(gl, gl.NO_ERROR, "format same as original RGB");
gl.texSubImage2D(gl.TEXTURE_2D, 0, 0,0, gl.RGBA, gl.UNSIGNED_BYTE, c);
glErrorShouldBe(gl, gl.INVALID_OPERATION, "format not same as original RGB");
gl.texSubImage2D(gl.TEXTURE_2D, 0, 0,0, gl.RGB, gl.UNSIGNED_SHORT_5_6_5, c);
glErrorShouldBe(gl, gl.INVALID_OPERATION, "type not same as original RGB");
gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, gl.RGBA, gl.UNSIGNED_SHORT_4_4_4_4, c);
glErrorShouldBe(gl, gl.NO_ERROR, "make texture RGBA 4_4_4_4");
gl.texSubImage2D(gl.TEXTURE_2D, 0, 0,0, gl.RGBA, gl.UNSIGNED_SHORT_4_4_4_4, c);
glErrorShouldBe(gl, gl.NO_ERROR, "format same as original RGBA 4_4_4_4");
gl.texSubImage2D(gl.TEXTURE_2D, 0, 0,0, gl.RGB, gl.UNSIGNED_BYTE, c);
glErrorShouldBe(gl, gl.INVALID_OPERATION, "format not same as original RGBA 4_4_4_4");
gl.texSubImage2D(gl.TEXTURE_2D, 0, 0,0, gl.RGBA, gl.UNSIGNED_BYTE, c);
glErrorShouldBe(gl, gl.INVALID_OPERATION, "type not same as original RGBA 4_4_4_4");

successfullyParsed = true;
</script>
<script src="../../resources/js-test-post.js"></script>
</body>
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